/* ================================================================
   Identified — frontend, Finns-inspired (cream + lime-sage accent)
   Tweak the accent: change --accent and --accent-deep below.
   ================================================================ */

:root {
    --bg:           #ffffff;          /* white */
    --bg-card:      #ffffff;
    --bg-nav:       #f5f4f1;          /* neutral paper for nav pill */
    --fg:           #1a1a1a;          /* near-black */
    --fg-muted:     #5e5e5e;
    --fg-soft:      #8a8a8a;
    --border:       #e7e5df;
    --border-strong:#d2cfc7;

    --accent:       #a4df61;          /* lime-sage — adjust here */
    --accent-deep:  #0d3d2c;          /* deep forest, for text on accent */
    --accent-soft:  #e6f5ce;

    --font-sans:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif:   "Arizona", "ArizonaFallback", ui-serif, Georgia, Cambria, "Times New Roman", serif;

    --dark:         #1a1a1a;
    --dark-fg:      #ffffff;

    --error:        #d92d20;

    --radius-sm:    4px;
    --radius:       8px;
    --radius-lg:    12px;
    --radius-pill:  8px;

    --shadow:       0 1px 2px rgba(10,10,10,.04), 0 8px 24px rgba(10,10,10,.04);
    --shadow-strong:0 4px 12px rgba(10,10,10,.06), 0 24px 48px rgba(10,10,10,.08);

    --t-fast:       .15s ease;
    --t:            .2s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-feature-settings: "ss01", "cv11";
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; transition: opacity var(--t-fast); }
a:hover { opacity: .7; }

p { margin-bottom: 1rem; color: var(--fg-muted); }

strong { font-weight: 600; color: var(--fg); }

small { font-size: .85rem; color: var(--fg-muted); }

code {
    font-family: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .9em;
    background: var(--accent-soft);
    color: var(--accent-deep);
    padding: .14em .42em;
    border-radius: 6px;
}

figure { margin: 1.5rem 0; }

/* --- Headings --- */
h1, h2 {
    font-family: var(--font-serif);
    color: var(--fg);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.05;
}
h3, h4 {
    font-family: var(--font-sans);
    color: var(--fg);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

/* Body paragraphs use the serif for editorial contrast against the sans-serif h3/h4 */
p {
    font-family: var(--font-serif);
}

h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
h3 { font-size: 1.4rem; margin-bottom: .6rem; letter-spacing: -0.01em; }

/* --- Container --- */
.container       { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow{ width: 100%; max-width: 480px;  margin: 0 auto; padding: 0 1.5rem; }
.container-prose { width: 100%; max-width: 720px;  margin: 0 auto; padding: 0 1.5rem; }

/* --- Navigation --- */
nav.site-nav {
    position: sticky;
    top: 1rem;
    z-index: 100;
    margin: 1rem 1.5rem 0;
    padding: 0;
}
nav.site-nav .nav-pill {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    background: var(--bg-nav);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    padding: .55rem .8rem .55rem 1.4rem;
    max-width: 1180px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    font-weight: 700;
    font-size: 1.55rem;
    letter-spacing: -.03em;
    color: var(--fg);
}
.brand-mark-img {
    display: block;
    width: 24px;
    height: 24px;
}
nav.site-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    list-style: none;
    padding: 0;
    margin: 0;
}
nav.site-nav .nav-links a {
    font-size: .92rem;
    color: var(--fg);
    font-weight: 500;
    opacity: .8;
}
nav.site-nav .nav-links a:hover { opacity: 1; }
nav.site-nav .nav-links a.btn-primary { color: var(--accent-deep); opacity: 1; }

.lang-switch { display: inline-flex; align-items: center; gap: .35rem; padding-left: .6rem; border-left: 1px solid var(--border); }
.lang-switch a {
    text-transform: uppercase;
    font-size: .75rem;
    letter-spacing: .08em;
    font-weight: 700;
    padding: .25rem .55rem;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--fg) !important;
    opacity: 1 !important;
}
.lang-switch a:hover { background: var(--accent-soft); border-color: var(--accent); }
nav.site-nav .nav-links a.btn-accent { color: var(--accent-deep); opacity: 1; }
nav.site-nav .nav-mail { display: inline-flex; align-items: center; padding: .4rem .5rem; }

/* --- Mobile hamburger --- */
.nav-toggle { display: none; }
.nav-burger { display: none; cursor: pointer; }
.nav-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--fg);
    border-radius: 1px;
    transition: transform .25s, opacity .25s;
}
.nav-burger span + span { margin-top: 5px; }

@media (max-width: 768px) {
    .nav-burger { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: .5rem; }
    nav.site-nav .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        margin-top: .5rem;
        padding: 1rem 1.4rem;
        background: var(--bg-nav);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        gap: .8rem;
    }
    nav.site-nav .nav-links li { width: 100%; }
    nav.site-nav .nav-links a { display: block; padding: .4rem 0; font-size: 1rem; }
    nav.site-nav .nav-links a.btn { text-align: center; }
    .lang-switch { border-left: 0; padding-left: 0; padding-top: .4rem; border-top: 1px solid var(--border); width: 100%; }
    .lang-switch a { padding: .5rem 1.2rem !important; font-size: .9rem !important; }
    .nav-toggle:checked ~ .nav-links { display: flex; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    nav.site-nav .nav-pill { position: relative; }
}

/* --- Brand name inline --- */
.brand-name { font-weight: 700; color: var(--accent-deep); }
.brand-dot { color: var(--accent); }

/* --- Buttons --- */
.btn, button, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-family: inherit;
    font-weight: 600;
    font-size: .95rem;
    padding: .8rem 1.4rem;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--t);
    line-height: 1;
}
.btn-primary, button[type="submit"], input[type="submit"] {
    background: var(--accent);
    color: var(--accent-deep);
    border-color: var(--accent);
}
.btn-primary:hover, button[type="submit"]:hover { background: #93d350; border-color: #93d350; opacity: 1; }

.btn-accent {
    background: var(--dark);
    color: var(--dark-fg);
    border-color: var(--dark);
}
.btn-accent:hover { background: #1f1f1f; border-color: #1f1f1f; opacity: 1; }

.btn-ghost {
    background: transparent;
    color: var(--fg);
    border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(0,0,0,.04); opacity: 1; }

.btn-outline, button.outline {
    background: transparent;
    color: var(--fg);
    border-color: var(--border-strong);
}
.btn-outline:hover, button.outline:hover { background: rgba(0,0,0,.04); opacity: 1; }

.btn-sm { padding: .55rem 1.1rem; font-size: .88rem; }
.btn-lg { padding: 1rem 1.8rem; font-size: 1.05rem; }

/* "Buttons" produced by interactive non-form elements like the
   passkey button. Default to dark style. */
button:not([type="submit"]):not(.outline):not(.btn-outline):not(.btn-accent):not(.btn-ghost) {
    background: var(--dark);
    color: var(--dark-fg);
    border-color: var(--dark);
}

/* --- Hero --- */
.hero {
    padding: 5rem 0 3rem;
    text-align: center;
}
.hero .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--accent-soft);
    color: var(--accent-deep);
    padding: .35rem 1rem;
    border-radius: var(--radius-pill);
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
}
.hero h1 {
    max-width: 16ch;
    margin: 0 auto 1.5rem;
}
.hero .hero-sub {
    font-size: 1.18rem;
    color: var(--fg-muted);
    max-width: 38rem;
    margin: 0 auto 2.4rem;
    line-height: 1.6;
}
.hero .hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .75rem;
    flex-wrap: wrap;
}

/* --- Hero visual: a stylised "encrypted card" --- */
.hero-visual {
    margin: 3.5rem auto 0;
    max-width: 860px;
    background: var(--accent);
    border-radius: var(--radius-lg);
    padding: 1.2rem;
    box-shadow: var(--shadow-strong);
    position: relative;
}
.hero-visual .panel {
    background: var(--bg-card);
    border-radius: calc(var(--radius-lg) - 8px);
    padding: 2.2rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    text-align: left;
}
.hero-visual .panel .label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--fg-soft); margin-bottom: .3rem; font-weight: 600; }
.hero-visual .panel .value { font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em; }
.hero-visual .panel .ciphertext {
    font-family: ui-monospace, monospace;
    font-size: .8rem;
    color: var(--fg-soft);
    word-break: break-all;
    line-height: 1.4;
    height: 5.6em;
    overflow: hidden;
}
.hero-visual .arrow {
    text-align: center;
    font-size: 1.3rem;
    color: var(--accent-deep);
    font-weight: 700;
}

/* --- Section --- */
section { padding: 5rem 0; }
section.tight { padding: 3rem 0; }

.section-eyebrow {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-deep);
    padding: .3rem .9rem;
    border-radius: var(--radius-pill);
    font-size: .8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
}
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { color: var(--fg-muted); max-width: 36rem; margin: 0 auto; font-size: 1.08rem; }

/* --- Feature cards --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform var(--t), box-shadow var(--t);
}
.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}
.feature-icon {
    width: 44px; height: 44px;
    border-radius: 14px;
    background: var(--accent);
    color: var(--accent-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.4rem;
}
.feature-icon svg {
    display: block;
}
.feature-card h3 { margin-bottom: .5rem; font-size: 1.2rem; }
.feature-card p  { color: var(--fg-muted); margin-bottom: 0; font-size: .98rem; line-height: 1.55; }

/* --- Dark contrast section --- */
.section-dark {
    background: var(--dark);
    color: var(--dark-fg);
    border-radius: var(--radius-lg);
    margin: 0 1.5rem;
    padding: 4.5rem 0;
}
.section-dark h2 { color: var(--dark-fg); }
.section-dark p { color: rgba(246,243,235,.75); }
.section-dark .btn-ghost,
.section-dark .btn-outline {
    color: var(--dark-fg);
    border-color: rgba(246,243,235,.35);
}
.section-dark .btn-ghost:hover,
.section-dark .btn-outline:hover {
    background: rgba(246,243,235,.08);
    border-color: rgba(246,243,235,.6);
}
.section-dark .section-eyebrow {
    background: rgba(205,235,150,.15);
    color: var(--accent);
    border-color: rgba(205,235,150,.35);
}

/* --- Steps --- */
.steps-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 720px;
    margin: 0 auto;
}
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.6rem 1.8rem;
    display: flex;
    gap: 1.4rem;
    align-items: flex-start;
}
.step-num {
    flex-shrink: 0;
    width: 40px; height: 40px;
    border-radius: var(--radius-pill);
    background: var(--accent);
    color: var(--accent-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.05rem;
}
.step-content h3 { margin-bottom: .35rem; font-size: 1.15rem; }
.step-content p  { margin-bottom: 0; color: var(--fg-muted); font-size: .98rem; }

/* --- Forms --- */
form { margin: 0; }
label {
    display: block;
    font-size: .88rem;
    font-weight: 600;
    color: var(--fg);
    margin-bottom: .35rem;
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea,
select {
    display: block;
    width: 100%;
    font-family: inherit;
    font-size: 1rem;
    padding: .8rem 1rem;
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    background: var(--bg-card);
    color: var(--fg);
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
    margin-bottom: 1.1rem;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-deep);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

/* --- Article (auth cards) --- */
article {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.2rem;
    margin-bottom: 1rem;
}
article h2 { font-size: 1.6rem; margin-bottom: 1rem; letter-spacing: -.015em; }

.auth-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}

/* --- Details/summary --- */
details { margin: 1.2rem 0; }
summary {
    cursor: pointer;
    font-size: .9rem;
    font-weight: 600;
    color: var(--accent-deep);
    list-style: none;
    padding: .4rem 0;
}
summary::-webkit-details-marker { display: none; }
summary::before { content: "+ "; }
details[open] summary::before { content: "– "; }
details[open] > :not(summary) { margin-top: .8rem; }

/* --- Lists --- */
ul, ol { padding-left: 1.4rem; margin-bottom: 1rem; }
li { margin-bottom: .35rem; }

/* --- Footer --- */
footer.site-footer {
    margin-top: auto;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
    background: var(--bg);
}
footer.site-footer .footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}
footer.site-footer .footer-col h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--fg-soft); margin-bottom: .75rem; }
footer.site-footer .footer-col a { display: block; font-size: .88rem; color: var(--fg); opacity: .75; margin-bottom: .4rem; }
footer.site-footer .footer-col a:hover { opacity: 1; }
footer.site-footer .footer-brand-line { margin-top: 2rem; font-size: .85rem; color: var(--fg-soft); }
footer.site-footer .footer-bottom { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); font-size: .8rem; color: var(--fg-soft); }

/* --- Prose --- */
.prose { max-width: 720px; }
.prose h2 { margin-top: 2.5rem; margin-bottom: .5rem; font-size: 1.2rem; }
.prose p { color: var(--fg-muted); line-height: 1.7; margin-bottom: 1rem; }
.prose a { color: var(--accent-deep); text-decoration: underline; }

/* --- Utilities --- */
main { flex: 1; }
.text-center { text-align: center; }
.text-muted  { color: var(--fg-muted); }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.error { color: var(--error); font-weight: 500; font-size: .9rem; margin-bottom: 1rem; }

.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline; }
.htmx-request button[type="submit"] { opacity: .65; pointer-events: none; }

/* --- Responsive --- */
/* --- How-it-works page --- */
.hero-how h1 { max-width: 22ch; }

/* Wire-flow diagram (device → server → device) */
.flow-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: stretch;
    gap: .75rem;
    padding: 1rem;
}
.flow-node {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.1rem 1.5rem;
    min-width: 0;
    text-align: left;
}
.flow-node-server {
    background: var(--dark);
    color: var(--dark-fg);
    border-color: var(--dark);
}
.flow-node-server .flow-label { color: rgba(246,243,235,.65); }
.flow-node-server .flow-tag   { color: rgba(246,243,235,.55); }
.flow-label {
    font-size: .7rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--fg-soft);
    margin-bottom: .55rem;
    font-weight: 700;
}
.flow-body .flow-line {
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: -.01em;
}
.flow-body .flow-line code {
    background: transparent;
    padding: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    color: inherit;
    white-space: nowrap;
}
.flow-body .flow-cipher {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .72rem;
    font-weight: 400;
    word-break: break-all;
    color: rgba(246,243,235,.8);
    line-height: 1.5;
    max-height: 3em;
    overflow: hidden;
}
.flow-body .flow-result {
    font-size: 1.15rem;
    color: var(--accent-deep);
}
.flow-tag {
    margin-top: .5rem;
    font-size: .75rem;
    color: var(--fg-soft);
}
.flow-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    color: var(--accent-deep);
    font-size: .72rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 0 .1rem;
}

/* Editorial step rows */
.steps-editorial { padding-top: 3rem; }
.step-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}
.step-row:first-of-type { border-top: 0; padding-top: 1rem; }
.step-row-reverse .step-body { order: 2; }
.step-row-reverse .step-illus { order: 1; }

.step-chip {
    display: inline-block;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: .78rem;
    letter-spacing: .06em;
    color: var(--accent-deep);
    background: var(--accent-soft);
    padding: .28rem .7rem;
    border-radius: var(--radius-pill);
    margin-bottom: .8rem;
}
.step-body h3 { font-size: 1.6rem; margin-bottom: .5rem; }
.step-body p { font-size: 1.05rem; color: var(--fg-muted); margin-bottom: 0; }

.step-illus {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    gap: .8rem;
    min-height: 200px;
    justify-content: center;
}
.step-illus.illus-dark {
    background: var(--dark);
    color: var(--dark-fg);
    border-color: var(--dark);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .85rem;
    line-height: 1.45;
    word-break: break-all;
}
.illus-dark .illus-stream {
    color: rgba(246,243,235,.88);
}
.illus-dark .illus-stream.fade { color: rgba(246,243,235,.35); }
.illus-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    align-self: flex-start;
    font-weight: 700;
    font-size: .78rem;
    letter-spacing: .08em;
    color: var(--accent-deep);
    background: var(--accent);
    padding: .3rem .75rem;
    border-radius: var(--radius-pill);
}
.illus-bar {
    height: 8px;
    background: var(--accent);
    border-radius: var(--radius-pill);
}
.illus-bar + .illus-bar { opacity: .65; }
.illus-bar + .illus-bar + .illus-bar { opacity: .4; }
.illus-caption { color: var(--fg-muted); font-size: .9rem; margin-top: .4rem; }
.illus-pill {
    align-self: flex-start;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: .35rem .7rem;
    border-radius: var(--radius-pill);
    color: var(--fg);
}
.illus-row {
    display: flex;
    justify-content: space-between;
    font-size: .92rem;
    padding: .3rem 0;
    border-bottom: 1px dashed var(--border);
}
.illus-row:last-child { border-bottom: 0; }
.illus-row span { color: var(--fg-muted); }
.illus-row b { font-family: var(--font-sans); font-weight: 600; color: var(--fg); }

.illus-result { align-items: center; text-align: center; }
.illus-result .illus-check {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--accent-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .4rem;
}
.illus-result .illus-caption strong {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--fg);
    font-weight: 500;
}
.illus-result .illus-sub { color: var(--fg-muted); font-size: .85rem; }

/* Split card: what-user-keeps / what-we-see */
.split-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.split-cell { padding: 2rem; }
.split-cell + .split-cell { border-left: 1px solid var(--border); }
.split-cell-muted { background: #0a0a0a; color: var(--dark-fg); border-left-color: var(--dark); }
.split-cell-muted h3 { color: var(--dark-fg); }
.split-cell-muted .brand-name { color: var(--accent); }
.split-cell-muted:hover li {
    filter: blur(4px);
    text-decoration: line-through;
    transition: filter .3s, text-decoration .3s;
}
.split-cell-muted li { transition: filter .3s; }
.split-cell ul { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-direction: column; gap: .55rem; }
.check-list li, .cross-list li {
    position: relative; padding-left: 1.6rem; font-size: .95rem;
}
.check-list li { color: var(--fg); }
.check-list li::before {
    content: ""; position: absolute; left: 0; top: .45em;
    width: 14px; height: 8px;
    border-left: 2px solid var(--accent-deep);
    border-bottom: 2px solid var(--accent-deep);
    transform: rotate(-45deg);
}
.cross-list li { color: rgba(246,243,235,.85); }
.cross-list li::before {
    content: "–"; position: absolute; left: 0; top: -2px;
    color: var(--accent); font-weight: 700;
}

/* Stat callout */
.stat-section { padding: 3rem 0; }
.stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}
.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.4rem 1.8rem;
    display: flex;
    align-items: baseline;
    gap: .6rem;
}
.stat-num {
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: 2.2rem;
    letter-spacing: -.02em;
    line-height: 1;
    color: var(--fg);
    white-space: nowrap;
}
.stat-label { color: var(--fg-muted); font-size: .95rem; }

/* --- Pricing --- */
.hero-pricing h1 { max-width: 22ch; }

.billing-toggle {
    display: inline-flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    padding: 4px;
    margin-top: 2rem;
    font-size: .9rem;
    gap: 2px;
}
.billing-toggle input {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
    pointer-events: none;
}
.billing-toggle label {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    padding: .55rem 1.2rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    color: var(--fg-muted);
    background: transparent;
    transition: background var(--t-fast), color var(--t-fast);
    white-space: nowrap;
    line-height: 1;
}
.billing-toggle input:checked + label {
    background: var(--accent);
    color: var(--accent-deep);
}
.billing-toggle label .save {
    display: inline-block;
    font-size: .72rem;
    color: var(--accent-deep);
    background: var(--bg-card);
    padding: 2px 7px;
    border-radius: var(--radius-pill);
    margin-left: .5rem;
    font-weight: 700;
    line-height: 1.3;
}
.billing-toggle input:checked + label .save {
    background: rgba(255,255,255,.55);
}

.pricing-section { padding-top: 1rem; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}
.price-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}
.price-card-featured {
    background: var(--dark);
    color: var(--dark-fg);
    border-color: var(--dark);
    position: relative;
}
.price-card-featured h3,
.price-card-featured .price .num { color: var(--dark-fg); }
.price-card-featured .price-tag,
.price-card-featured .price .per,
.price-card-featured .price-foot { color: rgba(246,243,235,.7); }
.price-card-featured .price-list { color: rgba(246,243,235,.85); }
.price-card-featured .price-list li::before { background: var(--accent); }

.price-head { margin-bottom: 1.25rem; }
.price-head h3 { font-size: 1.5rem; margin-bottom: .4rem; }
.price-tag { color: var(--fg-muted); margin-bottom: 0; font-size: .95rem; }
.price-pill {
    display: inline-block;
    background: var(--accent);
    color: var(--accent-deep);
    font-size: .72rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-weight: 700;
    padding: .25rem .7rem;
    border-radius: var(--radius-pill);
    margin-bottom: .7rem;
}

.price-amounts { min-height: 5rem; margin-bottom: 1.25rem; }
.price { line-height: 1; }
.price .num {
    font-family: var(--font-serif);
    font-size: 2.6rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}
.price .per {
    font-size: .95rem;
    color: var(--fg-muted);
    margin-left: .35rem;
}
.price-foot { font-size: .88rem; color: var(--fg-muted); margin: .6rem 0 0; }

/* Billing toggle drives which price is visible */
.price .monthly, .price.monthly { display: none; }
.price .annual,  .price.annual  { display: block; }
body:has(#billing-monthly:checked) .price.monthly { display: block; }
body:has(#billing-monthly:checked) .price.annual  { display: none; }
body:has(#billing-annual:checked)  .price.monthly { display: none; }
body:has(#billing-annual:checked)  .price.annual  { display: block; }

.btn-block { width: 100%; }

.price-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    font-size: .95rem;
}
.price-list li {
    position: relative;
    padding-left: 1.6rem;
}
.price-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .55em;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.pricing-faq { padding-top: 3rem; padding-bottom: 5rem; }
.pricing-faq details {
    border-bottom: 1px solid var(--border);
    padding: 1.1rem 0;
    margin: 0;
}
.pricing-faq details summary {
    font-family: var(--font-sans);
    color: var(--fg);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 0;
}
.pricing-faq details summary::before { content: ""; }
.pricing-faq details summary::after { content: "+"; float: right; font-weight: 400; color: var(--fg-muted); }
.pricing-faq details[open] summary::after { content: "–"; }
.pricing-faq details p { margin-top: .6rem; }

@media (max-width: 900px) {
    .hero-visual .panel { grid-template-columns: 1fr; gap: 1.5rem; }
    .features-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .flow-diagram { grid-template-columns: 1fr; }
    .flow-arrow { transform: rotate(90deg); padding: .3rem 0; }
    .step-row { grid-template-columns: 1fr; gap: 1.5rem; padding: 2.2rem 0; }
    .step-row-reverse .step-body { order: 0; }
    .step-row-reverse .step-illus { order: 0; }
    .split-card { grid-template-columns: 1fr; }
    .split-cell + .split-cell { border-left: 0; border-top: 1px solid var(--border); }
    .stat-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    html { font-size: 16px; }
    nav.site-nav { margin: .6rem 1rem 0; }
    nav.site-nav .nav-pill { padding: .5rem .7rem .5rem 1rem; gap: 1rem; }
    nav.site-nav .nav-links { gap: 1rem; }
    .hero { padding: 3rem 0 2rem; }
    .hero .hero-cta { flex-direction: column; align-items: stretch; }
    .hero .hero-cta .btn { justify-content: center; }
    section { padding: 3.5rem 0; }
    .section-dark { margin: 0 1rem; padding: 3rem 0; }
    article { padding: 1.6rem; }
    footer.site-footer .footer-grid { grid-template-columns: 1fr; }
}